No statistically significant excess is observed in the search for Higgs decays to two neutral scalars with unequal masses, setting 95% CL upper limits between 0.9 and 36.8 pb depending on mass and decay scenario.
Observation of a new boson with mass near 125 GeV in pp collisions at sqrt(s) = 7 and 8 TeV
7 Pith papers cite this work. Polarity classification is still indexing.
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abstract
A detailed description is reported of the analysis used by the CMS Collaboration in the search for the standard model Higgs boson in pp collisions at the LHC, which led to the observation of a new boson. The data sample corresponds to integrated luminosities up to 5.1 inverse femtobarns at sqrt(s) = 7 TeV, and up to 5.3 inverse femtobarns at sqrt(s) = 8 TeV. The results for five Higgs boson decay modes gamma gamma, ZZ, WW, tau tau, and bb, which show a combined local significance of 5 standard deviations near 125 GeV, are reviewed. A fit to the invariant mass of the two high resolution channels, gamma gamma and ZZ to 4 ell, gives a mass estimate of 125.3 +/- 0.4 (stat) +/- 0.5 (syst) GeV. The measurements are interpreted in the context of the standard model Lagrangian for the scalar Higgs field interacting with fermions and vector bosons. The measured values of the corresponding couplings are compared to the standard model predictions. The hypothesis of custodial symmetry is tested through the measurement of the ratio of the couplings to the W and Z bosons. All the results are consistent, within their uncertainties, with the expectations for a standard model Higgs boson.
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CMS observes electroweak W±W± and WZ production with two jets at 13.6 TeV with >5σ significance in all-leptonic final states using 171 fb⁻¹ of data.
Updated constraints from the full Run 2 dataset show no evidence for anomalous Higgs couplings in gluon fusion, vector boson fusion, and associated production modes decaying to two photons.
No excess observed in search for Higgs to a1 a1 decays; 95% CL upper limits on branching ratio range 0.007-0.079 for a1 masses 4-15 GeV, excluding >16% in Type III 2HD+S for tan beta >2.
Combined differential and total Higgs boson production cross sections at 13 TeV are measured and found consistent with Standard Model expectations, with a total cross section of 53.4 pb.
CMS performs a combined SMEFT fit to multiple LHC measurements and precision data, yielding individual constraints on 64 Wilson coefficients and 43 linear combinations.
In the flavor-gauged two Higgs doublet model, h to Z gamma receives unique modifications from f fbar Z vertex corrections while both decays are sensitive to charged Higgs loops, with viable parameter space identified under current limits.
citing papers explorer
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Search for Higgs boson decays into two neutral scalars with unequal masses in final states with b quarks and tau leptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No statistically significant excess is observed in the search for Higgs decays to two neutral scalars with unequal masses, setting 95% CL upper limits between 0.9 and 36.8 pb depending on mass and decay scenario.
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First measurements of vector boson scattering in W$^\pm$W$^{\pm}$ and WZ production in all-leptonic final states at $\sqrt{s}$ = 13.6 TeV
CMS observes electroweak W±W± and WZ production with two jets at 13.6 TeV with >5σ significance in all-leptonic final states using 171 fb⁻¹ of data.
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Constraints on anomalous Higgs boson couplings to vector bosons and fermions using the $\gamma\gamma$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Updated constraints from the full Run 2 dataset show no evidence for anomalous Higgs couplings in gluon fusion, vector boson fusion, and associated production modes decaying to two photons.
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Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4$\tau$ and 2$\mu$2$\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
No excess observed in search for Higgs to a1 a1 decays; 95% CL upper limits on branching ratio range 0.007-0.079 for a1 masses 4-15 GeV, excluding >16% in Type III 2HD+S for tan beta >2.
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Combination and interpretation of differential Higgs boson production cross sections in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Combined differential and total Higgs boson production cross sections at 13 TeV are measured and found consistent with Standard Model expectations, with a total cross section of 53.4 pb.
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Combined effective field theory interpretation of Higgs boson, electroweak vector boson, top quark, and multi-jet measurements
CMS performs a combined SMEFT fit to multiple LHC measurements and precision data, yielding individual constraints on 64 Wilson coefficients and 43 linear combinations.
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Higgs Decays to $Z\gamma$ and $\gamma\gamma$ in the Flavor-Gauged Two Higgs Doublet Model
In the flavor-gauged two Higgs doublet model, h to Z gamma receives unique modifications from f fbar Z vertex corrections while both decays are sensitive to charged Higgs loops, with viable parameter space identified under current limits.